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Finding the Fourth Proportional to 936.58, 1,397.52 and 844.42

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Solution

The fourth proportional to 936.58, 1,397.52 and 844.42 is: 1,260.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.58 : 1,397.52 = 844.42 : x
  2. Step 2: Convert to fraction form
    936.58/1,397.52 = 844.42/x
  3. Step 3: Cross multiply
    936.58x = 1,397.52 × 844.42
  4. Step 4: Simplify right side
    936.58x = 1,180,093.84
  5. Step 5: Solve for x
    x = 1,180,093.84/936.58
  6. Step 6: Final answer
    x = 1,260.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.